A Mesoporous Anisotropic n-Type Bi2Te3 Monolith with Low Thermal Conductivity as an Efficient Thermoelectric Material
A mesoporous Bi2Te3 monolith with ≈20% porosity is fabricated by hot‐pressing mesoporous powders. The mesostructures are able to transport carriers and scatter phonons efficiently. The reduction (≈60%) of the thermal conductivity is sufficient to compensate for the loss of electrical conductivity pe...
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| Veröffentlicht in: | Advanced Materials 2012-09, Vol.24 (37), p.5065-5070 |
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| container_end_page | 5070 |
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| container_issue | 37 |
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| container_title | Advanced Materials |
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| creator | Zhang, Yichi Day, Tristan Snedaker, Matthew L. Wang, Heng Krämer, Stephan Birkel, Christina S. Ji, Xiulei Liu, Deyu Snyder, G. Jeffrey Stucky, Galen D. |
| description | A mesoporous Bi2Te3 monolith with ≈20% porosity is fabricated by hot‐pressing mesoporous powders. The mesostructures are able to transport carriers and scatter phonons efficiently. The reduction (≈60%) of the thermal conductivity is sufficient to compensate for the loss of electrical conductivity perpendicular to the direction of applied pressure, leading to an enhanced zT of 0.7, highest among all reported self‐doped, n‐type Bi2Te3 at similar temperatures. |
| doi_str_mv | 10.1002/adma.201201974 |
| format | Article |
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Jeffrey</creatorcontrib><creatorcontrib>Stucky, Galen D.</creatorcontrib><creatorcontrib>Center for Energy Efficient Materials (CEEM)</creatorcontrib><creatorcontrib>Energy Frontier Research Centers (EFRC)</creatorcontrib><title>A Mesoporous Anisotropic n-Type Bi2Te3 Monolith with Low Thermal Conductivity as an Efficient Thermoelectric Material</title><title>Advanced Materials</title><addtitle>Adv. Mater</addtitle><description>A mesoporous Bi2Te3 monolith with ≈20% porosity is fabricated by hot‐pressing mesoporous powders. The mesostructures are able to transport carriers and scatter phonons efficiently. The reduction (≈60%) of the thermal conductivity is sufficient to compensate for the loss of electrical conductivity perpendicular to the direction of applied pressure, leading to an enhanced zT of 0.7, highest among all reported self‐doped, n‐type Bi2Te3 at similar temperatures.</description><subject>anisotropic materials</subject><subject>Bismuth - chemistry</subject><subject>bismuth telluride</subject><subject>Elasticity</subject><subject>mesoporous materials</subject><subject>Porosity</subject><subject>solar (photovoltaic), solid state lighting, phonons, thermoelectric, bio-inspired, energy storage (including batteries and capacitors), electrodes - solar, defects, charge transport, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly), synthesis (scalable processing)</subject><subject>Tellurium - chemistry</subject><subject>Thermal Conductivity</subject><subject>thermoelectric materials</subject><issn>0935-9648</issn><issn>1521-4095</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kU2P0zAQhi0EYsvClSOyOHHJMmPHTnwsZT-Q2uVSxNFyHEc1JHGIHUr_PamyW2k0o9E872g0LyHvEW4QgH02dWduGOAcqshfkBUKhlkOSrwkK1BcZErm5RV5E-MvAFAS5GtyxVjJsARYkWlNdy6GIYxhinTd-xjSGAZvaZ_tT4OjXzzbO053oQ-tTwd6PKdtONL9wY2daekm9PVkk__r04maSE1Pb5vGW-_6tEDBtc6mcd65M8mN3rRvyavGtNG9e6rX5Mfd7X7zkG2_33_brLeZ50zmGdrcGSMRVMXrXBXMoDNCQWlg7mpWq1pUYKEywtWMYSWLohENBy4dlljxa_Jx2Rti8jpan5w92ND38z0aEYQo5Qx9WqBhDH8mF5PufLSubU3v5qdohByRq1ye0Q9P6FR1rtbD6DsznvTzP2dALcDRt-50mSPos1v67Ja-uKXXX3frSzdrs0XrY3L_Lloz_tay4IXQPx_vtdo8gkK808j_A89MlsA</recordid><startdate>20120925</startdate><enddate>20120925</enddate><creator>Zhang, Yichi</creator><creator>Day, Tristan</creator><creator>Snedaker, Matthew L.</creator><creator>Wang, Heng</creator><creator>Krämer, Stephan</creator><creator>Birkel, Christina S.</creator><creator>Ji, Xiulei</creator><creator>Liu, Deyu</creator><creator>Snyder, G. 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Jeffrey</au><au>Stucky, Galen D.</au><aucorp>Center for Energy Efficient Materials (CEEM)</aucorp><aucorp>Energy Frontier Research Centers (EFRC)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Mesoporous Anisotropic n-Type Bi2Te3 Monolith with Low Thermal Conductivity as an Efficient Thermoelectric Material</atitle><jtitle>Advanced Materials</jtitle><addtitle>Adv. Mater</addtitle><date>2012-09-25</date><risdate>2012</risdate><volume>24</volume><issue>37</issue><spage>5065</spage><epage>5070</epage><pages>5065-5070</pages><issn>0935-9648</issn><eissn>1521-4095</eissn><abstract>A mesoporous Bi2Te3 monolith with ≈20% porosity is fabricated by hot‐pressing mesoporous powders. The mesostructures are able to transport carriers and scatter phonons efficiently. The reduction (≈60%) of the thermal conductivity is sufficient to compensate for the loss of electrical conductivity perpendicular to the direction of applied pressure, leading to an enhanced zT of 0.7, highest among all reported self‐doped, n‐type Bi2Te3 at similar temperatures.</abstract><cop>Weinheim</cop><pub>WILEY-VCH Verlag</pub><pmid>22821800</pmid><doi>10.1002/adma.201201974</doi><tpages>6</tpages></addata></record> |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | anisotropic materials Bismuth - chemistry bismuth telluride Elasticity mesoporous materials Porosity solar (photovoltaic), solid state lighting, phonons, thermoelectric, bio-inspired, energy storage (including batteries and capacitors), electrodes - solar, defects, charge transport, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly), synthesis (scalable processing) Tellurium - chemistry Thermal Conductivity thermoelectric materials |
| title | A Mesoporous Anisotropic n-Type Bi2Te3 Monolith with Low Thermal Conductivity as an Efficient Thermoelectric Material |
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